The given equation is y = 3x - 1.
Test the given solutions.
A. (4,1)
y = 1
3x-1 = 3*4 - 1 = 11
Incorrect
B. (2,5)
y = 5
3x-1 = 3*2 - 1 = 5
Correct
C. (4,3)
y = 3
3x-1 = 3*4 - 1 =11
Incorrect
D. (0, -3)
y = 0
3x-1 = 3*0 - 1 = -1
Incorrect
B. (2,5)
1. x- 6 = -18
  Add 6 to each side.
  x = -12
2. 4x + 3 = 47
  Subtract 3 from each side.
  4x = 44
  Divide each side by 4.
  x = 11
3. 1/3x = 12
   Multiply each side by 3x.
   1 = 36x
   Divide each side by 36
    x = 1/36
4. 3x + 3 = 21
  Subtract 3 from each side.
  3x = 18
  Divide each side by 3.
  x = 6
5. 3/2x - 4 = 16
  Add 4 to each side.
  3/2x = 20
  Multiply each side by 2x.
  3 = 40x
  Divide each side by 40.
  Answer x = 3/40
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